System sending SMTP to exchange has a long delay
Bit of a weird one, we have an internal helpdesk system which just sends email to exchange using SMTP and recently (no clue when as we dont send tickets) there is a long pause from a user clicking submit ticket to the page showing submission complete. Now if I dont specify an exchange server in the settings the page loads instantly.
Scratching my head as to what could be the issue on exchange as not a lot has changed, the receive connectors are the same and certificates are all fine.
Any thoughts anyone?